No problem, we've got 2551 and 8643 to multiply
2551 × 8643 = 8643 × (2551)
+ 8643 × 1 what gives us 8643
+ 8643 × 50 that results in 432150
+ 8643 × 500 that results in 4321500
+ 8643 × 2000 that equals 17286000

= 22048293
